mirror of https://github.com/CGAL/cgal
85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
// Copyright (c) 1999 Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
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// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
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// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; version 2.1 of the License.
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// See the file LICENSE.LGPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $Source$
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// $Revision$ $Date$
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// $Name$
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//
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// Author(s) : Stefan Schirra
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#ifndef CGAL_DIRECTION_2_H
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#define CGAL_DIRECTION_2_H
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CGAL_BEGIN_NAMESPACE
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template <class R_>
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class Direction_2 : public R_::Kernel_base::Direction_2
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{
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typedef typename R_::RT RT;
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typedef typename R_::Vector_2 Vector_2;
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typedef typename R_::Line_2 Line_2;
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typedef typename R_::Ray_2 Ray_2;
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typedef typename R_::Segment_2 Segment_2;
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typedef typename R_::Kernel_base::Direction_2 RDirection_2;
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public:
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typedef R_ R;
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Direction_2() {}
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Direction_2(const RDirection_2& d)
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: RDirection_2(d) {}
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Direction_2(const Vector_2& v)
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: RDirection_2(v) {}
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Direction_2(const Line_2& l)
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: RDirection_2(l) {}
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Direction_2(const Ray_2& r)
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: RDirection_2(r) {}
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Direction_2(const Segment_2& s)
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: RDirection_2(s) {}
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Direction_2(const RT &x, const RT &y)
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: RDirection_2(x,y) {}
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};
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#ifndef CGAL_NO_OSTREAM_INSERT_DIRECTION_2
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template < class R >
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std::ostream &
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operator<<(std::ostream &os, const Direction_2<R> &d)
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{
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typedef typename R::Kernel_base::Direction_2 RDirection_2;
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return os << static_cast<const RDirection_2&>(d);
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}
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#endif // CGAL_NO_OSTREAM_INSERT_DIRECTION_2
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#ifndef CGAL_NO_ISTREAM_EXTRACT_DIRECTION_2
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template < class R >
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std::istream &
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operator>>(std::istream &is, Direction_2<R> &p)
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{
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typedef typename R::Kernel_base::Direction_2 RDirection_2;
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return is >> static_cast<RDirection_2&>(p);
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}
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#endif // CGAL_NO_ISTREAM_EXTRACT_DIRECTION_2
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CGAL_END_NAMESPACE
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#endif // CGAL_DIRECTION_2_H
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